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The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe
The Arize Greenhouse Pro LED lamp is designed to facilitate greenhouse photoperiod control
allowing you to control your light spread
• Innovative 6" circular vents maximize reflectivity
Grodan Stonewool A-OK Starter Plugs bloom The Bluelab calibration and conductivityA OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro Blocks. A OK Starter Plugs come labeled with instructions in a shrink wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.
US$ 43.00
US$ 30.95
US$ 36.99
US$ 29.99
